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Single-Particle Electrodynamics - Assassination Science

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[ ¨Σ 0 ] ∣ = 2( ˙v· ˙σ) + (¨v·σ),<br />

v=0<br />

[ ¨Σ]<br />

∣ = ¨σ + ( ˙v·σ) ˙v,<br />

v=0<br />

[ Σ ...<br />

0 ] ∣ = 3( ˙v· ¨σ) + 3(¨v· ˙σ) + ( v·σ) ... + 4 ˙v 2 ( ˙v·σ),<br />

v=0<br />

[ Σ]<br />

...<br />

∣ = σ ... + ˙v 2 ˙σ + 3<br />

v=0 2 ( ˙v·σ)¨v + 3( ˙v· ˙σ) ˙v + 3 (¨v·σ) ˙v,<br />

2<br />

G.4.8<br />

Covariant kinematical derivatives<br />

Computing now the covariant proper-time derivatives of U and Σ , related<br />

to their partial counterparts by<br />

we find<br />

(Ċ)α ≡ [Ċα ] + U α (C · ˙U),<br />

( ˙U) 0 = γ 4 (v· ˙v),<br />

( ˙ U) = γ 2 ˙v + γ 4 (v· ˙v)v,<br />

(Ü)0 = γ 5 (v·¨v) + 3γ 7 (v· ˙v) 2 ,<br />

(Ü) = γ3¨v + 3γ 5 (v· ˙v) ˙v + γ 5 (v·¨v)v + 3γ 7 (v· ˙v) 2 v,<br />

( U) ... 0 = γ 6 (v·... v) + 18γ 10 (v· ˙v) 3 + 3γ 8 ˙v 2 (v· ˙v) + 10γ 8 (v· ˙v)(v·¨v),<br />

( U) ...<br />

= γ 4 ...<br />

v + 3γ 6 ˙v 2 ˙v + 6γ 6 (v· ˙v)¨v + 4γ 6 (v·¨v) ˙v + γ 6 (v·... v)v<br />

+ 18γ 8 (v· ˙v) 2 ˙v + 18γ 10 (v· ˙v) 3 v + 3γ 8 ˙v 2 (v· ˙v)v<br />

+ 10γ 8 (v· ˙v)(v·¨v)v,<br />

( ....<br />

U) 0 = γ 7 (v·.... v) + 10γ 9 (v·¨v) 2 + 162γ 13 (v· ˙v) 4 + 9γ 9 ˙v 2 (v·¨v)<br />

+ 57γ 11 ˙v 2 (v· ˙v) 2 + 15γ 9 (v· ˙v)(v·... v) + 10γ 9 (v· ˙v)( ˙v·¨v)<br />

427

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